Highly selective detection of formaldehyde and its analogs in clams based on unique and specific conjugation reactions via ultraviolet-visible absorptions

Min, Yuru; Fu, Donglei; Liu, Honglei; Yuan, Chenyao; Wang, Lei; Cao, Mengyu; Sun, Aowei; Yang, Wenrong; Liu, Jingquan

doi:10.1016/j.cjac.2023.100287

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Formaldehyde is a highly toxic substance and widely used in indoor decoration, coating, textile industry, and other fields. − The World Health Organization’s International Agency for Research on Cancer identified formaldehyde as a Class 1 carcinogen as early as 2004. − Formaldehyde is not only recognized as an allergen and a potentially potent mutagenic substance, which can stimulate human skin, mucous membrane, and respiratory system, but also a direct cause of leukemia. , Pregnant women in the formaldehyde environment for a long time will cause fetal abnormalities. , Its damage to human health can never be ignored, known as a “health killer”. − Furthermore, formaldehyde hidden in wardrobe, wallpaper, wall paint, and other home decoration materials can volatilize outward for 3–15 years. , Formaldehyde pollution remains a long-lasting global challenge . Hence, it is urgent to develop an effective and recyclable formaldehyde removal method to improve the quality of human life.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Formaldehyde and Its Analogues Using a Hybrid Assembly of Pyrene-Modified Hydrazide and rGO: A Negative Carbon Emission and Green Chemical Decomposition Method

et al. 2023

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Indoor gaseous formaldehyde is the main environmental pollutant that can cause fatal threats to human health. A number of physical and chemical methods have been developed to tackle this issue. However, the existing methods are still unsatisfactory to meet the requirement of sustainable development owing to the flaws of low efficiency and reversible or second pollution. Herein, a chemical method based on a nucleophilic reaction between hydrazine and aldehyde that generates the only by-product of H2O is designed for the removal of formaldehyde. 1-Pyrenebutyric hydrazide was synthesized by a simple esterification reaction and then self-assembled on reduced graphene oxide (rGO) with a large surface area by forming π–π stacking to obtain a composite for chemical removal of gaseous formaldehyde under ambient conditions. In a practical test, the formaldehyde removal rate could reach 91% of the theoretical value, which meets the requirement for commercial formaldehyde removal applications. After 10 times recycling, the formaldehyde removal rate still remains as high as 85%. Moreover, the composite could be regenerated in weak acidic media, which greatly reduce the manufacturing cost in practical applications.

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Section: Introductionmentioning

confidence: 99%

“…8,9 Pregnant women in the formaldehyde environment for a long time will cause fetal abnormalities. 10,11 Its damage to human health can never be ignored, known as a "health killer". 12−14 Furthermore, formaldehyde hidden in wardrobe, wallpaper, wall paint, and other home decoration materials can volatilize outward for 3−15 years.…”

Section: ■ Introductionmentioning

confidence: 99%

Removal of Formaldehyde and Its Analogues Using a Hybrid Assembly of Pyrene-Modified Hydrazide and rGO: A Negative Carbon Emission and Green Chemical Decomposition Method

et al. 2023

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“…Recognized for its potential to inflict significant harm on organisms and humans, formaldehyde is associated with acute mucosal (skin) irritation, chronic physical immune system dysfunction, carcinogenicity, and teratogenicity [1,2]. Consequently, the World Health Organization has designated formaldehyde as a class 1 carcinogen and categorized it as a toxic and harmful water pollutant (class 1) [3,4]. Unlike traditional gaseous pollutants such as NO, NO 2 , and SO 2 , formaldehyde has become one of the main indoor air pollutants due to the use of substandard furniture and decoration materials.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Local Charge of Graphene via Iron Doping to Promote the Adsorption of Formaldehyde Molecules—A Density Functional Theory Study

Zhang,

Chen,

Cheng

et al. 2023

Coatings

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Formaldehyde is a colorless, pungent, and highly volatile toxic gas known for its detrimental effects on the brain, respiratory, and nervous systems. The adsorption method emerges as an effective approach for detecting and mitigating formaldehyde gas, with the adsorption material serving as its core component. Graphene, a two-dimensional nanomaterial with remarkable properties, exhibits enhanced adsorption capabilities when subjected to metal doping, which alters its local geometric and charge characteristics. In this investigation, theoretical first-principles density functional technology was employed to optimize the efficiency of Fe-doped graphene in formaldehyde adsorption. The calculated adsorption bond length and energy were used to determine the type of adsorption. Then, the calculated Bader charge, density of states (partial density of states), and differential valence charge density distribution were used to analyze the electron transfer process before and after adsorption. Finally, the theoretical optical properties analysis result was applied to analyze the potential of Fe-doped graphene for formaldehyde detection. The findings indicated that Fe-doped graphene constitutes a viable and stable doping structure, accompanied by a notable shift in valence charge distribution around the doped iron atom. This altered charge distribution facilitated the chemical adsorption process, leading to reduced adsorption spacing and increased adsorption energy. Throughout the chemical adsorption process, there was evident charge transfer between carbon (formaldehyde) and iron atoms, as well as between oxygen (formaldehyde) and iron atoms. The formation of adsorption bonds primarily involved the p-orbital electrons of carbon and oxygen atoms, along with the p- and d-orbital electrons of iron atoms. Ultimately, the Fe-doped graphene material exhibited promising applications in the realm of formaldehyde molecular detection, marked by significant theoretical disparities in optical properties before and after the adsorption process.

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Formaldehyde detection based on tannin carbon dots

Li,

Chi,

Zhao

et al. 2025

Chemical Engineering Science

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Highly selective detection of formaldehyde and its analogs in clams based on unique and specific conjugation reactions via ultraviolet-visible absorptions

Cited by 4 publications

References 23 publications

Removal of Formaldehyde and Its Analogues Using a Hybrid Assembly of Pyrene-Modified Hydrazide and rGO: A Negative Carbon Emission and Green Chemical Decomposition Method

Removal of Formaldehyde and Its Analogues Using a Hybrid Assembly of Pyrene-Modified Hydrazide and rGO: A Negative Carbon Emission and Green Chemical Decomposition Method

Optimizing the Local Charge of Graphene via Iron Doping to Promote the Adsorption of Formaldehyde Molecules—A Density Functional Theory Study

Formaldehyde detection based on tannin carbon dots

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